TY - GEN
T1 - Research on the technology of rotational motion for FOG strapdown inertial navigation system
AU - Sun, Feng
AU - Sun, Wei
AU - Gao, Wei
AU - Ben, Yueyang
PY - 2009
Y1 - 2009
N2 - In order to improve the accuracy of strapdown inertial navigation system, the constant drift of gyro and the bias of accelerometer in inertial measurement unit (IMU) will be translated into periodic signal by the rotation of IMU, and the undesirable effects of constant drifts of inertial components can be eliminated by integral operations. The uniaxial unidirectional and reciprocating rotary compensation methods are listed in this paper, and the uniaxial rotary compensation principle is also derived. According to the scale error and the installation error of inertial components, the error characteristics of two rotation modes are analysed and simulated. Simulation results show that, the unidirectional rotation mode of IMU will lead to navigational errors due to the existence of scale factor, whereas such errors can be avoided in IMU reciprocating rotation mode.
AB - In order to improve the accuracy of strapdown inertial navigation system, the constant drift of gyro and the bias of accelerometer in inertial measurement unit (IMU) will be translated into periodic signal by the rotation of IMU, and the undesirable effects of constant drifts of inertial components can be eliminated by integral operations. The uniaxial unidirectional and reciprocating rotary compensation methods are listed in this paper, and the uniaxial rotary compensation principle is also derived. According to the scale error and the installation error of inertial components, the error characteristics of two rotation modes are analysed and simulated. Simulation results show that, the unidirectional rotation mode of IMU will lead to navigational errors due to the existence of scale factor, whereas such errors can be avoided in IMU reciprocating rotation mode.
KW - Acceleration bias
KW - Gyro drift
KW - Inertial measurement unit
KW - Rotary modulation
KW - Strapdown inertial navigation system
UR - https://www.scopus.com/pages/publications/77449130389
U2 - 10.1109/ICMA.2009.5246048
DO - 10.1109/ICMA.2009.5246048
M3 - 会议稿件
AN - SCOPUS:77449130389
SN - 9781424426935
T3 - 2009 IEEE International Conference on Mechatronics and Automation, ICMA 2009
SP - 4913
EP - 4918
BT - 2009 IEEE International Conference on Mechatronics and Automation, ICMA 2009
T2 - 2009 IEEE International Conference on Mechatronics and Automation, ICMA 2009
Y2 - 9 August 2009 through 12 August 2009
ER -